New SharedArrayBuffer requirements

[hostingunlock]

I got an email from seach console .... with this:

Recently, Google systems have detected that SharedArrayBuffers (SABs) are used but no COOP or COEP headers are offered.

For web compatibility reasons, Chrome plans to request COOP / COEP headers for the use of SABs starting with Chrome version 91 (05-25-2021). Implement the "cross-origin-isolated" behavior on your site.

Any idea what it is or how to fix it?

 

[Sal Collaziano]

I got an email from seach console .... with this:

Recently, Google systems have detected that SharedArrayBuffers (SABs) are used but no COOP or COEP headers are offered.

For web compatibility reasons, Chrome plans to request COOP / COEP headers for the use of SABs starting with Chrome version 91 (05-25-2021). Implement the "cross-origin-isolated" behavior on your site.

Any idea what it is or how to fix it?

Me too. I received them for each of my sites using XenForo. Subscribing for updates...

 

[Sal Collaziano]

Google provides the following link to fix the issue. Very surprised nobody else is talking about this...

https://web.dev/cross-origin-isolation-guide/

 

[hostingunlock]

Google provides the following link to fix the issue. Very surprised nobody else is talking about this...

https://web.dev/cross-origin-isolation-guide/

It is a warning that will be applied in the month of May, expect a lot of results looking for a query, could you solve in your forum?

 

[Mike]

XF doesn't use SharedArrayBuffers at all; they're a very specific feature that hasn't really been well supported. There is a theory that Google's email isn't actually about SABs at all, but potentially caused by ... Google Analytics itself:

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There's also some discussion here:

Google Search Console Security Notification For SharedArrayBuffers

Yesterday, Google sent out a slew of notifications through Google Search Console about security or web compatibility issues upcoming with the site and Chrome 91. The email says there are new requirements for SharedArrayBuffers (SABs).

www.seroundtable.com

As it stands, I don't think there's really anything to change and at worst, if there is an obscure feature that is affected by this (unlikely to be in XF, BTW) then it should simply silently stop working. This particularly change appears to already be in Android Chrome.

 

[Sal Collaziano]

XF doesn't use SharedArrayBuffers at all; they're a very specific feature that hasn't really been well supported. There is a theory that Google's email isn't actually about SABs at all, but potentially caused by ... Google Analytics itself:

To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.

Accept third party cookies

There's also some discussion here:

Google Search Console Security Notification For SharedArrayBuffers

Yesterday, Google sent out a slew of notifications through Google Search Console about security or web compatibility issues upcoming with the site and Chrome 91. The email says there are new requirements for SharedArrayBuffers (SABs).

www.seroundtable.com

As it stands, I don't think there's really anything to change and at worst, if there is an obscure feature that is affected by this (unlikely to be in XF, BTW) then it should simply silently stop working. This particularly change appears to already be in Android Chrome.

Good to know! Thank you! This will be very helpful for anyone using XenForo and Google Analytics...